AEMC PowerPad Model 3945-B Power Quality Analyzer

True-RMS single-, two- and three-phase measurements at 256 samples/cycle, plus DC.

Retired products cannot be ordered

The AEMC PowerPad III Model 8333 Power Quality Analyzer is the recommended replacement

View Company Reviews

Manufactured

By AEMC

Includes

FREE Ground Shipping
FREE Lifetime Tech Support

Features

True-RMS single-, two- and three-phase measurements at 256 samples/cycle, plus DC
Real-time color waveforms
Easy-to-use on-screen setup
True-RMS voltage and current measurements
Measures DC volts, amps and power
Display and capture voltage, current and harmonics to the 50th order, including direction in real time
Phase diagram display
VA, VAR and W per phase and total
KVAh, VARh and kWh
Neutral current display for three-phase
Transformer K-factor display
Power factor displacement PF display
Captures up to 50 transients
Short-term flicker display
Phase unbalance (current and voltage)
Harmonic distortion (total and individual)

The AEMC PowerPad Model 3945-B power quality analyzer allows you to look inside your electrical system and see what is going on. Troubleshooting is so much easier because you can see the volts, amps and harmonic content in real-time and take pictures to document and analyze. The full color graphical display lets you see and analyze each signal clearly.

With a high speed sample rate, at 256 samples per cycle, the AEMC PowerPad Model 3945-B power quality analyzer provides excellent fidelity in reproducing waveforms and capturing transients that happen as fast as 62.5 µs. The PowerPad's 4MB of memory is conveniently positioned to let you store four different types of data, synchronized or independent of each other. You can store up to 12 screen snapshots, up to 50 captured transients that contain four cycles for each active input and 4096 alarm events. You can also record trend data for days, weeks or even months.

Six direct access function buttons on the AEMC PowerPad Model 3945-B power quality analyzer quickly let you see waveforms, harmonics, transients, alarm events, record and power & energy. Other functions and features of the PowerPad Model 3945-B include current probes that auto configure the instrument's current channel for range and scale and an online help system that gives you clear information about the functions and buttons for each screen.

The AEMC PowerPad Model 3945-B power quality analyzer ships complete with:

3 color-coded current probes
4 color-coded 10-foot voltage leads
4 color-coded alligator clips
RS-232 DB9F optically coupled serial cable
NiMH battery
US 120 V power cord
DataView software
Carrying bag
Soft carrying pouch
User manual

AEMC PowerPad Model 3945-B Power Quality Analyzer Specifications

Electrical
Sampling Frequency	256 samples per cycle
Data Storage	4 MB partitioned for waveforms, transients, alarms and trend recording
Voltage (TRMS)	Phase-to-Phase: 960 V Phase-to-Neutral: 480 V

Measurement
	Range	Resolution	Accuracy
Single-Phase RMS Voltages	15 to 480 V	0.1 V	±0.5% ± 2cts
Phase-to-Phase RMS Voltages	15 to 960 V	0.1 V	±0.5% ± 2cts
DC Voltage Component	15 to 680 V	0.1 V	±1% ± 2cts
Single-Phase Peak Voltages	15 to 680 V	1 V	±(1% ± 5cts)
Phase-to-Phase Peak Voltages	15 to 1360 V	1 V	±(1% ± 5cts)
Frequency (Hz)	40 to 69 Hz	0.01 Hz	±0.01 Hz
Current Probes (Arms) MN Clamp SR Clamp AmpFlex Probe	0 to 240 A 0 to 1200 A 10 to 6500 A	0.1 A 0.1; 1 A ≥ 1000 A 0.1 A; 1 A ≥ 1000 A	±(0.5% + 2cts) ±(0.5% + 2cts) ±(0.5% + 1A)
Active (Real) Power (kW)	0 to 9999 kW	4 digits (10,000ct)	±1% ± 1ct @ PF ≥ 0.8
Reactive Power (kVAR)	0 to 9999 kVAR	4 digits (10,000ct)	±1% ± 1ct @ PF ≤ 0.8
Apparent Power (kVA)	0 to 9999 kVA	4 digits (10,000ct)	±1% ± 1ct
Power Factor (PF & DPF)	-1.000 to 1.000	0.001	±(1.5% + 0.01)
Active Energy (kWh)	0 to 9999 MWh	4 digits (10,000ct)	±1% ± 1ct @ PF ≥ 0.8
Reactive Energy (kVARh)	0 to 9999 MVARh	4 digits (10,000ct)	±1% ± 1ct @ PF ≤ 0.8
Reactive Energy (kVARh)	0 to 9999 MVARh	4 digits (10,000ct)	±1% ± 1ct @ PF ≤ 0.8
Apparent Energy (kVAh)	0 to 9999 MVAh	4 digits (10,000ct)	±1% ± 1ct
Unbalance (V & A)	0 to 100%	0.1%	±1% ± 1ct
Phase Angle (V-A, A-A, V-V)	-179° to +180°	1°	±2° ± 1ct
Harmonics (1st to 50th) F = 40 to 69 Hz (V³ 50 V, A > nom/100)	0 to 999%	0.1%	±1% + 5cts
Total Harmonic Distribution (V & A)	0 to 999%	0.1%	±1% + 5cts
K-factor (Akf)	1 to 99.99	0.01	±5% ± 1ct
Flicker (Pst)	0.00 to 9.99	0.01	-
Power Source	9.6V NiMH rechargeable battery pack AC supply: 110/230 VAC ±20% (50/60Hz)
Battery Life	≥8 hrs with display on; ≤35 hrs with display off (record mode)